Prosecution Insights
Last updated: October 26, 2026

Colin J Cattanach, USPTO Patent Examiner

Listed by the USPTO as CATTANACH, COLIN J

Tech Center 2800 • Art Units: 2875

This examiner grants 59% of resolved cases

Analysis

CATTANACH, COLIN J is assigned to tech center 2800 and art unit 2875. The record includes 567 resolved cases, a 59.1% allowance rate, and an 803-day median to allowance. The 19.8% interview lift indicates that interviews have been associated with better allowance outcomes in the recorded matters.

The principal companies are Black & Decker Inc., Federal Signal Corporation, and Signify Holding B.V. The leading firms are Brooks Kushman P.C., FOLEY & LARDNER LLP, and Levenfeld Pearlstein, LLC. The relatively short median time to allowance does not eliminate the need for focused prosecution, but it may help counsel structure prompt responses and use examiner discussions to resolve issues efficiently.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

59.1%
Allow Rate
-8.9% vs TC avg
602
Total Applications
+19.8%
Interview Lift
803
Avg Prosecution Days
Based on 567 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
22.4%
§102 Novelty
53.1%
§103 Obviousness
20.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18784515 LIGHTED POWER TOOL Final Rejection BLACK & DECKER INC.
19168892 OUTDOOR LIGHT FIXTURE INCLUDING A VENTING REFRACTOR Non-Final OA SIGNIFY HOLDING B.V.
19116846 VEHICLE LAMP Non-Final OA KOITO MANUFACTURING CO., LTD.
18753339 DIGITAL MICROMIRROR DEVICE IN HIGH RESOLUTION LAMP Final Rejection Rivian IP Holdings, LLC

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Frequently Asked Questions

What is examiner Colin J Cattanach's allowance rate?

59.1% of resolved applications examined by Colin J Cattanach were allowed (567 resolved cases), compared with 65.6% across Art Unit 2875 over the last five years.

Does an interview help with examiner Colin J Cattanach?

This examiner's interview lift is +19.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Colin J Cattanach take to allow a patent?

Applications allowed by Colin J Cattanach took 803 days on average from filing to allowance.

Which art unit does examiner Colin J Cattanach work in?

Colin J Cattanach examines applications in Art Unit 2875 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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